1
|
Mascarell L, Airouche S, Berjont N, Gary C, Gueguen C, Fourcade G, Bellier B, Togbe D, Ryffel B, Klatzmann D, Baron-Bodo V, Moingeon P. The regulatory dendritic cell marker C1q is a potent inhibitor of allergic inflammation. Mucosal Immunol 2017; 10:695-704. [PMID: 27731323 DOI: 10.1038/mi.2016.87] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 08/30/2016] [Indexed: 02/04/2023]
Abstract
The complement subunit C1q was recently identified as a marker for monocyte-derived regulatory dendritic cells supporting the differentiation of interleukin (IL)-10-secreting CD4+ T cells with a suppressive activity. Furthermore, C1q expression is upregulated in peripheral blood mononuclear cells of allergic patients in the course of successful allergen immunotherapy. Herein, we investigated a potential direct role of C1q in downregulating allergic inflammation. In mice with ovalbumin (OVA) or birch pollen (BP)-induced allergic asthma, C1q is as efficacious as dexamethasone to reduce both airway hyperresponsiveness (AHR), eosinophil, and ILC2 infiltrates in bronchoalveolar lavages, as well as allergen-specific T helper 2 cells in the lungs. Administration of C1q does not expand IL-10+/Foxp3+ regulatory T cells in the lungs, spleen, or in the blood. Depletion of plasmacytoid dendritic cells (pDCs) abrogates the capacity of C1q to reduce AHR and eosinophilic infiltrates in OVA-sensitized mice. Also C1q treatment inhibits the activation of human and mouse pDCs by CpGs, thereby demonstrating a critical role for pDCs in the anti-inflammatory activity of C1q. We conclude that regulatory dendritic cells can mediate a potent direct anti-inflammatory activity via the expression and/or secretion of molecules such as C1q, independently of their capacity to expand the pool of regulatory T cells.
Collapse
Affiliation(s)
- L Mascarell
- Research Department, Stallergenes Greer, Antony, France
| | - S Airouche
- Research Department, Stallergenes Greer, Antony, France
| | - N Berjont
- Research Department, Stallergenes Greer, Antony, France
| | - C Gary
- Research Department, Stallergenes Greer, Antony, France.,CEA, Fontenay-aux-roses, France
| | - C Gueguen
- Research Department, Stallergenes Greer, Antony, France
| | - G Fourcade
- CNRS UMR7211 & INSERM U959, Hôpital Pitié-Salpêtrière, Paris, France
| | - B Bellier
- CNRS UMR7211 & INSERM U959, Hôpital Pitié-Salpêtrière, Paris, France
| | - D Togbe
- Artimmune SAS, Orléans, France
| | - B Ryffel
- CNRS UMR 7355-University of Orléans, Orléans, France
| | - D Klatzmann
- CNRS UMR7211 & INSERM U959, Hôpital Pitié-Salpêtrière, Paris, France
| | - V Baron-Bodo
- Research Department, Stallergenes Greer, Antony, France
| | - P Moingeon
- Research Department, Stallergenes Greer, Antony, France
| |
Collapse
|
2
|
Le Moigne E, Gueguen C, Delluc A, Novak E, Mottier D, Le Gal G. Récidive après une MVTE survenue sous contraception oestroprogestative : quel risque ? quels facteurs de risque ? Rev Med Interne 2010. [DOI: 10.1016/j.revmed.2010.10.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
3
|
Breysse M, Bachelier J, Bonnelle JP, Cattenot M, Cornet D, Décamp T, Duchet JC, Durand R, Engelhard P, Frety R, Gachet C, Genested P, Grimblot J, Gueguen C, Kasztelan S, Lacroix M, Lavalley JC, Leclercq C, Moreau C, De Mourgues L, Olivé JL, Payen E, Portefaix JL, Toulhoat H, Vrinat M. New Developments in Hydrotreating Catalysis : Characterization and Optimization of Niw/A12O3 Catalysts. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bscb.19870961101] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
4
|
Raynal M, Guilleminot J, Gueguen C, Cooke R, Delseny M, Gruber V. Structure, organization and expression of two closely related novel Lea (late-embryogenesis-abundant) genes in Arabidopsis thaliana. Plant Mol Biol 1999; 40:153-165. [PMID: 10394954 DOI: 10.1023/a:1026403215270] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We have isolated and sequenced a 9.5 kb genomic region from A. thaliana, located on chromosome 2, which contains two tandemly arranged closely related genes (AtM10 and AtM17) coding for a new family of LEA proteins. The deduced proteins have a molecular mass of 11 and 29 kDa, respectively, are extremely hydrophilic except at their N-termini and share 70% amino acid (aa) identity. A 47 aa motif containing a 6-cysteine domain is present once in AtM10 and four times in AtM17. The short intergenic region, the identical position of the intron and the overall sequence homology suggest that these two genes evolved through a duplication event. This conclusion is supported by the presence of two homologous strictosidine synthase-like (pseudo)genes downstream from AtM17 and AtM10. Expression studies, using AtM10 and AtM17 cDNAs, revealed that both transcripts accumulate exclusively in seeds from late embryogenesis until two days after imbibition. Expression of both genes in young seedlings is repressed during ABA, salt or drought treatment, whereas a cold stress induces the expression of AtM17 only. In situ hybridization revealed that AtM10 transcripts are detected throughout the embryo while those of AtM17 are more localized to cotyledon cells.
Collapse
Affiliation(s)
- M Raynal
- Laboratoire de Physiologie et Biologie Moléculaire des Plantes, UMR5545 du CNRS, Université de Perpignan, France
| | | | | | | | | | | |
Collapse
|
5
|
|
6
|
Des Rochettes BM, Marcilly C, Gueguen C, Bousquet J. Kinetic study of hydrogen transfer of olefins under catalytic cracking conditions. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/s0166-9834(00)82277-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
7
|
Affiliation(s)
- F. Fajula
- Laboratoire de Chimie Organique Physique et Cinétique Chimique Appliquées, Unité Associée au Centre National de la Recherche Scientifique No. 418, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue Ecole Normale, 34075 Montpellier Cedex, France
| | - S. Nicolas
- Laboratoire de Chimie Organique Physique et Cinétique Chimique Appliquées, Unité Associée au Centre National de la Recherche Scientifique No. 418, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue Ecole Normale, 34075 Montpellier Cedex, France
| | - F. Di Renzo
- Laboratoire de Chimie Organique Physique et Cinétique Chimique Appliquées, Unité Associée au Centre National de la Recherche Scientifique No. 418, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue Ecole Normale, 34075 Montpellier Cedex, France
| | - C. Gueguen
- Centre de Recherche ELF-France, BP 22, 69360 Saint Symphorien d'Ozon, France
| | - F. Figuéras
- Laboratoire de Chimie Organique Physique et Cinétique Chimique Appliquées, Unité Associée au Centre National de la Recherche Scientifique No. 418, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue Ecole Normale, 34075 Montpellier Cedex, France
| |
Collapse
|
8
|
Gachet C, Breysse M, Cattenot M, Decamp T, Frety R, Lacroix M, de Mourgues L, Portefaix J, Vrinat M, Duchet J, Housni S, Lakhdar M, Tilliette M, Bachelier J, Cornet D, Engelhard P, Gueguen C, Toulhoat H. Optimization of the composition of Ni-W/A1203 hydrotreating catalysts using model molecules and real feedstock conversion studies. Catal Today 1988. [DOI: 10.1016/0920-5861(88)87043-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
9
|
Picault JP, Giraud P, Drouin P, Guittet M, Bennejean G, Lamande J, Toquin D, Gueguen C. Isolation of a TRTV-like virus from chickens with swollen-head syndrome. Vet Rec 1987; 121:135. [PMID: 3118557 DOI: 10.1136/vr.121.6.135-a] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
10
|
|
11
|
Gueguen C, Guillouzo A, Lenoir P, Bourel M. Action of hydrocortisone hemisuccinate on new-born rat liver explant cultures. Biomedicine 1974; 21:286-92. [PMID: 4441591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
12
|
Gueguen C, Leroux J. [A model for the displacement of the center of gravity in man]. Agressologie 1973; 14:73-7. [PMID: 4794013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
13
|
Leroux J, Baron JB, Bizzo G, Bessineton JC, Gueguen C, Noto R, Pacifici M. [Spectrum study of lateral and antero-posterior spontaneous motions of the center of gravity in man in the standing position]. Agressologie 1973; 14:57-63. [PMID: 4805849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
14
|
|